Tirtawijaya Gabriel, Lee Jin-Hwa, Bashir Khawaja Muhammad Imran, Lee Hae-Jeung, Choi Jae-Suk
Faculty of Biotechnology, University of Surabaya, Jalan Raya Kalirungkut, Surabaya 60292, Indonesia.
Department of Seafood Science and Technology, The Institute of Marine Industry, Gyeongsang National University, Tongyeong 53064, Republic of Korea.
Animals (Basel). 2024 Apr 29;14(9):1332. doi: 10.3390/ani14091332.
The seafood processing industry generates significant waste, including mackerel heads (MH), constituting 20-32% of total waste. This study explored the potential of utilizing MH as a feed source for black soldier fly larvae (BSF larvae). BSF larvae are known for their ability to efficiently convert organic materials into nutrient-rich biomass. Five concentrations of MH (0, 10, 20, 30, 40, and 50% in chicken feed) were fed to BSF larvae for eight days. After harvesting, their growth, MH conversion efficiency, nutritional content, and heavy metals reduction potential were measured. BSF larvae showed optimal growth when fed with a feed containing 20% MH, resulting in a 14.36-fold increase in weight compared to the control group, as determined by the Fisher's Least Significant Difference Test. BSF larvae maintained a survival rate of 99.33%. With the lowest feed conversion ratio (FCR) of 2.09 at 20% MH, feed efficiency was improved by up to 65.15%, and feed reduction up to 73.53%. MH enhanced lipid and protein content in BSF larvae. Furthermore, BSF larvae in this study showed higher polyunsaturated fatty acids (PUFA), including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), as well as other amino acids which are required for breeding animals. The current study highlights the potential of MH as a feed source for BSF larvae, improving nutritional biomass. It also suggests BSF larvae as an eco-friendly option for handling seafood processing waste and as an alternative feed source for animals.
海鲜加工业产生大量废弃物，其中包括鲭鱼头（MH），其占总废弃物的20%-32%。本研究探索了将鲭鱼头用作黑水虻幼虫（BSF幼虫）饲料来源的潜力。BSF幼虫以能够将有机物质高效转化为营养丰富的生物质而闻名。将五种浓度的鲭鱼头（在鸡饲料中分别为0%、10%、20%、30%、40%和50%）投喂给BSF幼虫，持续八天。收获后，测量它们的生长情况、鲭鱼头转化效率、营养成分以及重金属减排潜力。通过Fisher最小显著差异检验确定，当给BSF幼虫投喂含20%鲭鱼头的饲料时，其生长最佳，体重比对照组增加了14.36倍。BSF幼虫的存活率维持在99.33%。在20%鲭鱼头含量时，饲料转化率（FCR）最低，为2.09，饲料效率提高了65.15%，饲料减少了73.53%。鲭鱼头提高了BSF幼虫的脂质和蛋白质含量。此外，本研究中的BSF幼虫含有更高的多不饱和脂肪酸（PUFA），包括二十碳五烯酸（EPA）和二十二碳六烯酸（DHA），以及养殖动物所需的其他氨基酸。当前研究突出了鲭鱼头作为BSF幼虫饲料来源的潜力，可改善营养生物质。它还表明BSF幼虫是处理海鲜加工废弃物的环保选择，也是动物的替代饲料来源。
